Tool-holder



P. H. ROUILLARD.

TOOL HOLDER.

APPLICATION FILED JUNE I3. 1919:

Patented Oct. 12,1920.

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.ITTORNEY.

P. H. ROUILLAR D.

TOOL HOLDER.

APPLICATION FILED JUNE 13, 1919.

1,355,698. Patented 0015 12 920.

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2 /4 v 5 74 BY A TTORNEY.

UNITED. STATES PATENT. OFFICE.

PETER H. ROUILLARD, 0F SPRINGFIELD, MASSACHUSETTS, AS'SIGNOR TO ROUILLARD TOOL CORPORATION, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

TOOL-HOLDER.

Patented Oct. 12, 1920.

Application filed June 13, 1919. Serial No. 303,896;

To aZZ whom it may concern: I

Be it known that I, PETER H. RoUILLARD, a citizen of the United States of- America, residing at Springfield in the county of Hampden and State of Massachusetts, have invented a new and useful Tool-Holder, of

which the following is a specification.

' pensive, compact, strong and durable holder with which metal-cutting tools of different kinds and shapes may be securely connected and in which they may beheld in proper position while operating on the work, it being understood that this holder is intended to be secured to the tool-post or other similar device of the machine with which the holder is used. I

Another object is to furnish such holder with binding means for the tools which means are ofsuch a nature as to avoid breaking the same. Such means consist of set-screws disposed in opposite edges of the shank so that they bear on the top and bottomof the tool between. Heretofore in a holder'of this type a single set-screw foreach tool has been employed, with the result that the tool has been broken by the set-screw when the former has a deflection therein and is -forced down by the set-screw on to a fiat surface, the concavity in the tool being contiguous to such surfaces.

Other objects and advantages will appear in the course ofthe following description.

I attain the objects and secure the advantages of my invention by the means illustrated in the accompanying drawings, in which F igurel is an elevation of one side of a tool holder which embodies a practical form of my invention; Fig. 2, an elevation of the opposite side of said holder; Fig. 3, an elevation of one edge of the holder showing a straight, square tool or cutter attached thereto; Fig. 4, a longitudinal section through the holder extending from end to end and with said cutterin position, such section being taken through the center of the edges of the holder; Fig. 5, an edge elevation of the holder, similar to that shown in Fig. 3, having a left-hand, square cutter attached thereto; Fig. 6, an elevation of the opposite edge of the holder having a righthand, square cutter attached thereto; Fig. 7, a similar elevation showing a boring tool in place, said tool being octagonal in crosssection; Fig. 8, an edge elevation similar to that shown in Fig. 8, but having a straight, round cutter connected with the holder; Fig. 9, still another similar elevation, but with a nurling-tool in place of either the square or round cutter; Fig. 10, an elevation of one end of the holder, Fig. 11, an elevation of the other end of said holder, and, Fig. 12 a longitudinal section similar tothat shown in Fig. 4, but illustrating a slightly modified construction.

Similar numerals refer to similar parts throughout the several views.

Referring to the drawings it will be observed that the holder consists of a shank having a straight body part 1 and an integral, bent part 2, said part 1 having a passage? therein and said part 2 having a passage 4 therein, and a plurality of setscrews 5. The part 2- is bent at an angle to the line of direction of the body part or portion 1 of the holder, the offset being on one side of said holder.

Each of the passages 3 and 4: has square corners with concave sides, in cross-section, as best represented at 6 and 7 respectively, in Figs. 10 and 11. The purpose of giving this form to the passages 3 and 4 is to enable them to receive tools or cutters which have shanks that are round, square, or of other angularity in cross-section, and to enable such tools to be held securely in place, in the manner and by the means presently to be described.

The passage 3 may extend into the body portion 1, from the free end of su h portion, at an angle so as to give the proer incline to the tool which may be received in such passage. Or, a corresponding passage, as 13 in Fig. 12, may be provided, which has the same axis as the longitudinal axis of the body portion of the holder.

One of the set-screws 5 is tapped through one edge of the body 1 and is capable of being turned down so thatit projects into the passage 3. Two of the set-screws 5 are tapped into opposite edges of the bent part 2, their axes are in thesame straight line,

and said set-screws are capable of being turned inwardly until they project into the passage 4. The set-screws 5 are without heads, but have angular sockets opening through their outer ends to receive an implement or wrench, such as'that shown at 9 in Fig. 4, for the purpose of tightening and loosening said screws.

Referring to Figs. 3 and 4 it will be seen that I therein show a square cutter 10 for making a straight out. The cutter 10 is received in thepassage 3, fits more or less loosely within the rectangular corners 6 of said passage, and is secured by means of the set-screw 5 when the latter is turned down, by means of the implement 9, tightly against said cutter. The cutter 10 has a forward and upward inclination, owing to the; inclination of the passage 3 relative to the body 1, when the holder is held in proper position, and the set-screw 5 with which said cutter is secured is then above the latter and engages thetop thereof.

In a similar manner a round cutter, as 11, shown in Fig. 8, is attached to the holder, or the shank of a nurling tool, as 12, shown in 9, is attached to said holder. In each of these cases the cylindrical portion of the'cutter 11 orof the nurling-tool 12 is received in and fits more or less loosely the.

concave sides 7 of the passage 3. Not only is the member in the passage 3 held securely by means of the concave sides 7 and the con-' tiguous set-screw 5, but provision is thus.

' made for very nice adjustment about its own axis of such member. r

The passage 4 in the offset part 2, the

axis of which said passage is the same as the axis of said'part, is adapted to receive either a square or round rightor lefthandl cutter, such tool being secured by means of the two set-screws 5 with which said part is provided, The set-screws 5, in this case, engage the cutter from above and below and securely hold the same in place without liability of breakage. The square cutter is received in the corners 6 and the round cutter in the concave sides 7, as in the first case.

In Fig. 5 a square cutter 14 is shown in the holder and the parts are positioned to make a left-hand cut, while Fig. 6 the holder is turned over and the-parts are in position to make a right-hand cut. The same cutter 14 may be used hereprovided it be first removed from the holder, turned over, and

reengaged therewith. A round-cutter may V be substituted for the; square cutter 14, just 7 as the round cutter 11 may be substituted for the square cutter 10, and adjusted about its axis. A boring tool 15', having a shank which is octagonal in cross section, is' shown in Fig. as being connected with the 'holder. The boring tool 15 is inserted in the passage 4 from the free end of. thebent part 2, and secured by means of the two set-screws 5 in said part.- The shape of the passage 4 is adapted to receive and securely hold, with the aidof the set-screws, the boring tool 15. as well as any other tool, as will be readily seen. V s

It is due to the bent part 2 that the'holder' may be invertedso as touse the same either as a right or left-hand holder.

The holder illustrated in-Fig. 12 is similar to the other holder except with regard to the passage 13 and in that there are four set-screws 5 at each end. This construction is advantageous inalarge holder more espe- 7 cially, for the reason that the'straight cutter is held at the top and bottomby two pairs of set-screws, and likewise with regard to V the cutter or implement at the other end." Thecutter inthe passage 13, being heldby the aforesaid set-screws out of contact with elther the top or bottom of said passage,'is

not likely to be broken, the same thing being true, of course, with regard to the cutter or 'member in the'passage '4 in any case.-

viously two oppositely-disposed set-screws might'be used alone in connection with the passage 13, and, furthermore, a set-screw: might be added, to the holder 'hereinbe'fore' first described" to; cooperate with the other in connection with the passage 3; i i

It is to be noted that the set-screw 5 which protrudes into the passage 3 is arranged with its axis at right-angles to the axis of said passage.

This tool holder can be usedto take the place of four different toolholders, namely, 7

a straight tool holder, a right-hand" tool holder, a lefthand tool holder, and a boring .tool holder, and is adapted'also to retain'for practical use 'quite a large number-of different tools or cutters, I

An important feature of, this invention is that the parts arecombined in one piece, 7

with the exception of theset-screws, whichpiece can be forged from a bar of solid metal or malleable steel, the passages 3 (01213) and V 4 canbe bored andbroached" in the usual manner, and the openings for: the set-screws 5 can be tapped also in theusual manner. 4

By using the headless, socket set-screws'fi my holderis free from'projections which are objectionable for various reasons in a device of this character.

Various changes in the shape, size, and

minor details of construction may be made Without departing from the spirit of my'invention or exceeding the scope of what is claimed.

What I claim as m invention, and desire to secure by Letters atent, is

1. As an improved article of manufacture, a tool holder comprising a body portion and a bent part at one terminal of such portion, said body portion and bent part having therein tool-receiving passages, said passage in said body portion having square corners and concave sides in cross-section, and set-- screws tapped into said body portion and said bent part to engage tools therein.

2. As an improvedarticle of manufacture, a tool holder comprising a body portion and a bent part at one end thereof, said body portion and bent part having tool-receiving passages therein, said passage in said bent part having square corners and concave sides in cross-section, and set-screws tapped into said body portion and said bent part to en gage tools therein.

3. As an improved article of manufacture, a tool holder comprising a body portion and a bent part at one terminalthereof, said body portion and said bent part having therein tool-receiving passages, said passages having square corners and concave sides in cross-section, and set-screws tapped into said body portion and said bent part to engage tools therein.

' PETER H. ROUILLARD. Witnesses:

F. A. CUTTER, A. C. FAIRBANKS, 

